[英]How to combine data from two reactive streams in project reactor?
我最近開始使用 Project Reactor,但不知道如何使用嵌套流。 我想用內部單聲道的一些數據更新外部單聲道的數據。
@GetMapping("/search")
public Mono<Github> combineGithubData() {
WebClient client = WebClient.create("https://api.github.com");
Mono<Github> data = client.get().uri(URI.create("https://api.github.com/users/autocorrectoff")).retrieve().bodyToMono(Github.class);
data = data.map(s -> {
client.get().uri(URI.create("https://api.github.com/users/Kukilej")).retrieve().bodyToMono(Github.class).map(m -> {
s.setXXX(m.getName());
return m;
});
return s;
});
return data;
}
字段 XXX 始終返回為 null,盡管我已將其設置為來自內部 Mono 的值。 我很確定這會在 RxJs 中起作用。 我如何使用 Project Reactor 進行這項工作?
編輯:Github類的代碼
import lombok.*;
@Getter @Setter
@Builder
@ToString
@NoArgsConstructor
@AllArgsConstructor
public class Github {
private String login;
private int id;
private String node_id;
private String avatar_url;
private String gravatar_id;
private String url;
private String html_url;
private String followers_url;
private String following_url;
private String gists_url;
private String starred_url;
private String subscriptions_url;
private String organizations_url;
private String repos_url;
private String events_url;
private String received_events_url;
private String type;
private boolean site_admin;
private String name;
private String company;
private String blog;
private String location;
private String email;
private String hireable;
private String bio;
private int public_repos;
private int public_gists;
private int followers;
private int following;
private String created_at;
private String updated_at;
private String XXX;
}
您的內部流沒有被訂閱。 要么我們flatMap
,要么更好,使用zip
:
data
.zipWith(client.get().uri(...).retrieve().bodyToMono(Github.class))
.map(tuple2 -> {
//update tuple2.getT1() with m.getName() and return the updated tuple
return tuple2.mapT1(tuple2.getT1().setXXX(tuple2.getT2().getName()));
})
.map(tuple2 -> tuple2.getT1() //updated s);
zipWith()
訂閱內部流。
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